223730656646 has 8 divisors (see below), whose sum is σ = 383538268560. Its totient is φ = 95884567128.

The previous prime is 223730656631. The next prime is 223730656649. The reversal of 223730656646 is 646656037322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 223730656594 and 223730656603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223730656649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7990380581 + ... + 7990380608.

It is an arithmetic number, because the mean of its divisors is an integer number (47942283570).

Almost surely, 2^223730656646 is an apocalyptic number.

223730656646 is a deficient number, since it is larger than the sum of its proper divisors (159807611914).

223730656646 is a wasteful number, since it uses less digits than its factorization.

223730656646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15980761198.

The product of its (nonzero) digits is 6531840, while the sum is 50.

The spelling of 223730656646 in words is "two hundred twenty-three billion, seven hundred thirty million, six hundred fifty-six thousand, six hundred forty-six".